CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) [Abstract]
Net income (loss)	$ 28,827	$ (189,389)
Other comprehensive income, net of tax
Net change in fair value of interest rate swaps, net of tax	0	85
Foreign currency translation adjustment, net of tax	1,458	797
Release of cumulative translation adjustment to loss from discontinued operations due to substantial liquidation of foreign entity	3,044	0
Total other comprehensive income, net of tax	4,502	882
Comprehensive income (loss)	$ 33,329	$ (188,507)